CN103120178B - A kind of water baseization chlopyrifos novel form ZW and processing thereof and application - Google Patents
A kind of water baseization chlopyrifos novel form ZW and processing thereof and application Download PDFInfo
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Abstract
The invention discloses a kind of novel form of containing chlopyrifos and processing method thereof and application, belong to pesticide producing processing technique field.A kind of novel form ZW of containing chlopyrifos, micro-capsule suspension-aqueous emulsion that this formulation is mixed to form by chlorpyrifos microcapsule suspension agent and chlorpyrifos aqueous emulsion, is made up of following component by percentage to the quality: 0.5% ~ 60% chlopyrifos, 1% ~ 25% solvent, 1% ~ 20% one-tenth wafer, 1% ~ 10% surfactant, 1% ~ 10% antifreezing agent, 0.01% ~ 1% thickener, 0.01% ~ 5%pH conditioning agent, 0.01% ~ 1% defoamer, 0.01% ~ 1% preservative, surplus is water.Present invention also offers the application of novel form in agricultural insect pests control field of containing chlopyrifos.Said preparation reduces the usage amount of organic solvent, alleviates the harm to environment, has good quick-acting and lasting effect, stable performance, easy to use.
Description
Technical field
The invention belongs to pesticide producing processing technique field, be specifically related to a kind of novel form of containing chlopyrifos and processing method thereof and application, be specifically related to a kind of micro-capsule suspension-aqueous emulsion of being mixed to form by chlorpyrifos microcapsule suspension agent and chlorpyrifos aqueous emulsion and processing method thereof and application.
Background technology
Chlopyrifos Clorpyrifos, chemical name O, O-diethyl-O-(3,5,6-trichloro-2-pyridyl) D2EHDTPA, molecular formula C
9h
11cl
3nO
3pS, chemical structural formula is as follows:
Chlopyrifos is group thiophosphate organophosphorus insecticide, have tag, stomach toxicity and fumigation action, for corn, cotton, paddy rice, soybean, peanut, beet, fruit tree, vegetables, prevent and treat multiple soil and foliar pest.Residual life on blade, is not long, but residual life in soil is then longer, therefore better to the control efficiency of soil insect.Under recommended dose, do not have poisoning to most crop, chlopyrifos is longer at China's applicating history, and along with the optimization of synthesis technique and the progress of formulation technologies, chlopyrifos still plays very important effect in crop pests control.
The formulation being the exploitation of former medicine with chlopyrifos is at present mainly: missible oil, aqueous emulsion, microemulsion, granule, micro-capsule suspension etc.Type of dosage form is abundanter, but various formulation all also exists weak point in actual applications, as: missible oil, uses a large amount of organic solvents, works the mischief to environment; Microemulsion, not only can use polar solvent, also can use a large amount of surfactants, makes potential harmful effect to environment; Aqueous emulsion, affect by its physicochemical property, active constituent content is low, and lasting effect is poor; Micro-capsule suspension, then quick-acting is poor, and active constituent content is low.
Summary of the invention
The invention provides the new mixt type of a kind of containing chlopyrifos micro-capsule suspension (CS) and aqueous emulsion (EW), i.e. micro-capsule suspension-aqueous emulsion (ZW), be intended to solve the preparation such as chlorpyrifos microcapsule suspension agent, aqueous emulsion weak point in actual applications, and then the extensive use in the agricultural insect pests control field of promotion chlopyrifos.
The present invention is achieved through the following technical solutions:
A kind of novel form ZW of containing chlopyrifos, micro-capsule suspension-aqueous emulsion that this formulation is mixed to form by chlorpyrifos microcapsule suspension agent and chlorpyrifos aqueous emulsion, is made up of following component by percentage to the quality: 0.5% ~ 60% chlopyrifos, 1% ~ 25% solvent, 1% ~ 20% one-tenth wafer, 1% ~ 10% surfactant, 1% ~ 10% antifreezing agent, 0.01% ~ 1% thickener, 0.01% ~ 5%pH conditioning agent, 0.01% ~ 1% defoamer, 0.01% ~ 1% preservative, surplus is water.
Described novel form is preferably made up of following component by percentage to the quality: described novel form is made up of following component by percentage to the quality: 10% ~ 60% chlopyrifos, 1% ~ 20% solvent, 1% ~ 15% one-tenth wafer, 2% ~ 10% surfactant, 1% ~ 8% antifreezing agent, 0.01% ~ 0.5% thickener, 0.1% ~ 3%pH conditioning agent, 0.01% ~ 0.3% defoamer, 0.01% ~ 0.5% preservative, surplus is water.
Described novel form is that any adopting in following two kinds of methods is made:
Method one, is first processed into micro-capsule suspension, aqueous emulsion according to the formula of chlorpyrifos microcapsule suspension agent and chlorpyrifos aqueous emulsion respectively by chlopyrifos, then proportionally mixes, stir, obtain finished product;
Method two, first processes chlorpyrifos microcapsule suspension agent, after microcapsules solidified forming, adds the oil phase of aqueous emulsion, stirs, obtain finished product.
Described solvent comprises the combination of one or more in aromatic hydrocarbon solvent series, solvent naphtha series, vegetable oil and derivative thereof, mineral oil solvent.Described aromatic hydrocarbon solvent comprises toluene, dimethylbenzene, methyl naphthalene, trimethylbenzene etc.But be not limited only to above-mentioned listed solvent.
Described one-tenth wafer comprises gelatin, gum Arabic, alginate, starch, carboxymethyl cellulose, phthalate, cellulose, methylcellulose, ethyl cellulose, HPMC, cellulose acetate butyrate, succinic acid cellulose acetate, polyaminoacid, PLA, polyacrylic resin, polymethyl methacrylate, hydroxyethyl methylacrylate, PLEG, toluene di-isocyanate(TDI) (TDI), methyl diphenylene diisocyanate, hexa-methylene-1, 6-vulcabond, diethylenetriamines, urea, two or more combination in formaldehyde.But be not limited only to above-mentioned listed one-tenth wafer.
Described surfactant comprises lignosulfonates, alkylnaphthalene sulfonate condensation polymer, polycarboxylic acid salt, alkylphenol polyoxyethylene, phenethyl phenol formaldehyde resin APEO, many phenethyls phenol APEO, fatty alcohol-polyoxyethylene ether, methanonaphthalene sodium sulfonate, alkyl phenol phosphate, EO-PO block copolymer, EO-PO block polyether, aliphatic alcohol polyoxyvinethene phosphate, fatty alcohol polyoxyethylene ether sulfate, alkyl phenol formaldehyde resin polyoxyethylene ether, lauryl sodium sulfate, calcium dodecyl benzene sulfonate, lauryl sodium sulfate, oleic acid polyoxyethylene, the combination of one or more in phenethyl phenol APEO.But be not limited only to above-mentioned institute surfactant.Described surfactant comprises emulsifier and dispersant.
Described antifreezing agent comprises the combination of one or more in ethylene glycol, propane diols, urea, diethylene glycol or glycerine.But be not limited only to above-mentioned listed antifreezing agent.
Described thickener to comprise in xanthans, aluminium-magnesium silicate, sodium carboxymethylcellulose, organobentonite, white carbon, kaolin, sepiolite or polyethylene glycol one or more combination.But be not limited only to above-mentioned listed thickener.
Described pH adjusting agent comprises one or more in glacial acetic acid, hydrochloric acid, ammoniacal liquor, monoethanolamine, triethanolamine or inorganic base.But be not limited only to above-mentioned listed pH adjusting agent.
Described defoamer comprises the one in organic silicon defoamer, polyethers defoamer or polysiloxane defoamers.But be not limited only to above-mentioned listed defoamer.
Described preservative comprises one or more in potassium sorbate, Sodium Benzoate, formaldehyde, sodium hydroxy methyl glycinate or isothiazolinone.But be not limited only to above-mentioned listed preservative.
Described water is deionized water or distilled water.
Present invention also offers the processing method of the novel form of containing chlopyrifos, comprise following two kinds of methods:
Method one, is first processed into micro-capsule suspension, aqueous emulsion according to the formula of chlorpyrifos microcapsule suspension agent and chlorpyrifos aqueous emulsion respectively by chlopyrifos, then proportionally mixes, stir, obtain finished product;
Method two, first processes chlorpyrifos microcapsule suspension agent, after microcapsules solidified forming, adds the oil phase of aqueous emulsion, stirs, obtain finished product.
Chlorpyrifos microcapsule suspension agent described in method one, be made up of the component of following mass percent: 1% ~ 60% chlopyrifos, 1% ~ 25% solvent, 1% ~ 20% one-tenth wafer, 0.1% ~ 10% surfactant, 1% ~ 10% antifreezing agent, 0.01% ~ 2% thickener, 0% ~ 3%pH conditioning agent, 0.01% ~ 1% defoamer, 0.01% ~ 1% preservative, surplus is water;
Described chlorpyrifos aqueous emulsion, is made up of the component of following mass percent: 1% ~ 60% chlopyrifos, 1% ~ 25% solvent, 1% ~ 15% surfactant, 0% ~ 10% antifreezing agent, 0.01% ~ 1%pH conditioning agent, and surplus is water.
The novel form Chlorpyrifos micro-capsule suspension of the containing chlopyrifos made described in method one and the mass ratio of chlorpyrifos aqueous emulsion are 1 ~ 90:1 ~ 90, are preferably 5 ~ 80:5 ~ 80.
The oil phase of the aqueous emulsion described in method two comprises chlopyrifos, solvent and emulsifier.
Wherein the processing method of chlorpyrifos microcapsule suspension agent can select any in following three kinds, is summarized as follows:
1. interfacial polymerization: the process that interfacial polymerization prepares microcapsules comprises: 1. form oil/water emulsion or water/fat liquor by suitable emulsifier, make encapsulated thing emulsification; 2. add reactant with initiated polymerization, form polymer film on drop surface; 3. microcapsules are separated from oil phase or aqueous phase.React complete, then after adding suitably appropriate auxiliary agent modulation, final preparation can be obtained.When interfacial reaction microcapsules, the very key factor affecting properties of product is dispersity.The kind of mixing speed, viscosity and emulsifier, stabilizing agent and the size distribution, wall thickness etc. of consumption to microcapsules also have a great impact.The monomer making wall material requires it is all multi-functional.As polyamine, polyisocyanates, polyalcohol etc.Structure, the ratio of reaction monomers are different, and the performance of the microcapsules of preparation is not identical yet.
2. situ aggregation method: 1. get urea, water and formaldehyde, ratio n (urea): n (water) according to the amount of substance of three: n (formaldehyde)=1:4:2 mixing, regulates pH:8 ~ 9 with aqueous slkali, reacts 1h and obtain clear prepolymer at 70 DEG C; 2. form oil/water emulsion or water/fat liquor by suitable emulsifier, make encapsulated thing emulsification; 3. prepolymer is mixed with emulsion, under agitation fully stirring makes prepolymer be dissolved in the dispersion medium water of emulsion, add acid solution, the system pH of making reduces gradually in batches, after starting to deposit to capsule-core surface by microscopic to polymer, be heated to 60 ~ 70 DEG C, continue coated and solidify gradually, when pH is reduced to 2.5 ~ 3.0, insulation 2h, adjust pH to standard figures, after cooling with aqueous slkali.React complete, then after adding suitably appropriate auxiliary agent modulation, can microcapsule suspending agent be obtained.
3. complex coacervation: 1. form oil/water emulsion or water/fat liquor by suitable emulsifier, make encapsulated thing emulsification; 2. add gelatin solution, and about regulating preparation pH value to 4.5, under agitation, slowly instill gum-solution, stir 30min; 3. regulate preparation pH value to about 7.0, slowly add 37% formalin, micro-capsule is cured.React complete, then after adding suitably appropriate auxiliary agent modulation, can microcapsule suspending agent be obtained.
There is not Intellectual Property Rights Issues in three kinds of described methods preparing chlorpyrifos microcapsule, those skilled in the art can realize according to prior art.
Wherein the processing method of chlorpyrifos aqueous emulsion is conventional method, and those skilled in the art can realize according to prior art: be first dissolved in solvent by a certain amount of chlopyrifos, then adds surfactant and forms oil phase; Antifreezing agent and water are mixed into aqueous phase (continuous phase) according to quantity, under high speed shear effect, oil phase are slowly joined in aqueous phase and forms chlorpyrifos aqueous emulsion.
Present invention also offers the application of novel form in agricultural insect pests control field of containing chlopyrifos, application preferably on control sucking pest and lepidoptera pest, the application especially on control wheat aphid, water rice hopper and paddy rice rice leaf roller.
Compared with prior art, beneficial effect of the present invention is:
Of the present invention by chlorpyrifos microcapsule suspension agent and chlorpyrifos aqueous emulsion mixing, mixed novel form overcomes the weak point of single formulation, has good practical application effect and promotional value.
(1) chlopyrifos is processed into the water base agent type ZW that this is new, compares chlorpyrifos ec formulation, do not need to use more organic solvent, and active constituent content is greatly improved, thus decrease the waste of other auxiliary materials such as auxiliary agent, reduce the pollution to environment, meet environmental protection trend.
(2) this chlopyrifos novel form, due to the water and milk phase containing chlopyrifos active ingredient in preparation and microcapsules phase, therefore make this novel form ZW have good quick-acting and lasting effect simultaneously, solve the problem of chlorpyrifos aqueous emulsion lasting period difference and microcapsule formulation quick-acting difference.
(3) in preparation process of the present invention, microcapsules phase, water and milk phase two-phase are processed respectively by different processing modes, there is different particle size, fully can reach the attachment of active ingredient, sprawl and permeate, realize tagging and stomach poison function of chlopyrifos, improve control efficiency, increase the availability of agricultural chemicals.
Embodiment
Below adopt concrete embodiment to be illustrated, in the present invention, all adopt mass percent %.
Embodiment one
The processing method of the present embodiment Chlorpyrifos novel form ZW is as follows: first adopt interfacial polymerization method to process 10% chlopyrifos CS, conventional method processes 10% chlopyrifos EW, and the two obtains 10% chlopyrifos ZW according to mass ratio 3:7 Homogeneous phase mixing.
Table 1: interfacial polymerization processing chlorpyrifos microcapsule suspension agent and the mixing of conventional method process water emulsion
10% prepared chlopyrifos novel form ZW can reach following technical indicator: suspensibility >=93%; Stability of emulsion is qualified; Encystation rate >=91%; Automatic dispersiveness >=90%; PH value is qualified; Cold storage indices is qualified; Heat storage indices is qualified; Freeze-thaw stability indices is qualified.
Embodiment two
The processing method of the present embodiment Chlorpyrifos novel form ZW is as follows: first adopt interfacial polymerization method to process 20% chlopyrifos CS, conventional method processes 30% chlopyrifos EW, and the two obtains 23% chlopyrifos ZW according to mass ratio 7:3 Homogeneous phase mixing.
Table 2: interfacial polymerization processing chlorpyrifos microcapsule suspension agent and the mixing of conventional method process water emulsion
23% prepared chlopyrifos novel form ZW can reach following technical indicator: suspensibility >=94%; Stability of emulsion is qualified; Encystation rate >=90%; Automatic dispersiveness >=91%; PH value is qualified; Cold storage indices is qualified; Heat storage indices is qualified; Freeze-thaw stability indices is qualified.
Embodiment three
The processing method of the present embodiment Chlorpyrifos novel form ZW is as follows: first adopt interfacial polymerization method processing chlopyrifos CS, chlopyrifos oil phase (comprising chlopyrifos, toluene, emulsifier) is added after the solidification of CS encystation, ratio sees the following form, and stirs and obtains 30% chlopyrifos ZW.
The formula rate of table 3:30% chlopyrifos ZW formulation
30% prepared chlopyrifos novel form can reach following technical indicator: suspensibility >=94%; Stability of emulsion is qualified; Encystation rate >=90%; Automatic dispersiveness >=91%; PH value is qualified; Cold storage indices is qualified; Heat storage indices is qualified; Freeze-thaw stability indices is qualified.
Embodiment four
The processing method of the present embodiment Chlorpyrifos novel form ZW is as follows: first adopt in-situ polymerization to process 30% chlopyrifos CS, conventional method processes 30% chlopyrifos EW, and the two obtains 30% chlopyrifos ZW according to mass ratio 2:8 Homogeneous phase mixing.
Table 4: situ aggregation method processing chlorpyrifos microcapsule suspension agent and the mixing of conventional method process water emulsion
30% prepared chlopyrifos novel form can reach following technical indicator: suspensibility >=92%; Stability of emulsion is qualified; Encystation rate >=94%; Automatic dispersiveness >=91%; PH value is qualified; Cold storage indices is qualified; Heat storage indices is qualified; Freeze-thaw stability indices is qualified.
Embodiment five
The processing method of the present embodiment Chlorpyrifos novel form ZW is as follows: first adopt in-situ polymerization to process 40% chlopyrifos CS, conventional method processes 48% chlopyrifos EW, and the two obtains 44.8% chlopyrifos ZW according to mass ratio 4:6 Homogeneous phase mixing.
Table 5: situ aggregation method processing chlorpyrifos microcapsule suspension agent and the mixing of conventional method process water emulsion
44.8% prepared chlopyrifos novel form can reach following technical indicator: suspensibility >=92%; Stability of emulsion is qualified; Encystation rate >=94%; Automatic dispersiveness >=91%; PH value is qualified; Cold storage indices is qualified; Heat storage indices is qualified; Freeze-thaw stability indices is qualified.
Embodiment six
The processing method of the present embodiment Chlorpyrifos novel form ZW is as follows: first adopt in-situ polymerization processing chlopyrifos CS, after solidification encystation, add chlopyrifos EW oil phase (comprising chlopyrifos, toluene, emulsifier), ratio sees the following form, stir, obtain 50% chlopyrifos ZW.
Table 6:50% chlopyrifos ZW formula
50% prepared chlopyrifos novel form can reach following technical indicator: suspensibility >=90%; Stability of emulsion is qualified; Encystation rate >=94%; Automatic dispersiveness >=91%; PH value is qualified; Cold storage indices is qualified; Heat storage indices is qualified; Freeze-thaw stability indices is qualified.
Embodiment seven
The processing method of the present embodiment Chlorpyrifos novel form ZW is as follows: first adopt in-situ polymerization to process 10% chlopyrifos CS, conventional method processes 50% chlopyrifos EW, and the two obtains 46% chlopyrifos ZW according to mass ratio 1:9 Homogeneous phase mixing.
Table 7: complex coacervation processing chlorpyrifos microcapsule suspension agent and the mixing of conventional method process water emulsion
46% prepared chlopyrifos novel form can reach following technical indicator: suspensibility >=90%; Stability of emulsion is qualified; Encystation rate >=94%; Automatic dispersiveness >=91%; PH value is qualified; Cold storage indices is qualified; Heat storage indices is qualified; Freeze-thaw stability indices is qualified.
Embodiment eight
The processing method of the present embodiment Chlorpyrifos novel form ZW is as follows: first adopt again solidifying method processing chlopyrifos CS, after solidification encystation, add chlopyrifos EW oil phase (comprising chlopyrifos, toluene, emulsifier), ratio sees the following form, stir, obtain 60% chlopyrifos ZW.
Table 8:60% chlopyrifos ZW formula
60% prepared chlopyrifos novel form can reach following technical indicator: suspensibility >=90%; Stability of emulsion is qualified; Encystation rate >=94%; Automatic dispersiveness >=91%; PH value is qualified; Cold storage indices is qualified; Heat storage indices is qualified; Freeze-thaw stability indices is qualified.
Embodiment nine
Field control effectiveness test one:
Test medicine:
10% chlopyrifos novel form (embodiment one)
30% chlopyrifos novel form (embodiment four)
60% chlopyrifos novel form (embodiment eight)
Contrast medicament:
10% chlopyrifos CS
10% chlopyrifos EW
Adopt the above-mentioned chlopyrifos novel form product that embodiments of the invention make, this experiment embodiment is the field control effectiveness test for wheat aphid, and adopt chlopyrifos normal field using dosage, dosage process arranges three repetitions, repeat to adopt the group arrangement of random district, each repetition setting area 20m
2, carry out routine spraying with knapsack sprayer, process latter 1 day, 3 days, 7 days, 15 days, 30 days, 45 days, 60 days investigation aphid larva quantity respectively, method and data statistic analysis carry out with reference to GB/T 17980.79 ~ 2004 relevant criterion.
Table 12: chlopyrifos novel form control wheat aphid field control effectiveness test result
As seen from the above table, chlopyrifos novel form ZW has showed excellent quick-acting and lasting effect in the control of wheat aphid, lasting period reaches more than one month, completely covers the whole breeding time of aphid, compensate for the deficiency of single formulation EW lasting effect, CS quick-acting, in process of the test, do not find the bad reactions such as poisoning, there is actual application value.
Field control effectiveness test two:
Test medicine:
23% chlopyrifos novel form (embodiment two)
44.8% chlopyrifos novel form (embodiment five)
46% chlopyrifos novel form (embodiment seven)
Contrast medicament:
10% chlopyrifos CS
10% chlopyrifos EW
Adopt the above-mentioned chlopyrifos novel form product that embodiments of the invention make, this experiment embodiment is the field control effectiveness test for water rice hopper, and adopt chlopyrifos normal field using dosage, dosage process arranges three repetitions, repeat to adopt the group arrangement of random district, each repetition setting area 30m
2, carry out routine spraying with knapsack sprayer, process latter 1 day, 3 days, 7 days, 15 days, 30 days, 45 days, 60 days investigation plant hopper larva quantity respectively, method and data statistic analysis carry out with reference to GB/T 17980.4-2000 relevant criterion.
Table 13: chlopyrifos novel form water prevention rice fulgorid field control effectiveness test result
As seen from the above table, chlopyrifos novel form ZW has showed excellent quick-acting and lasting effect in the control of rice fulgorid, lasting period reaches more than one month, completely covers the whole breeding time of water rice hopper, compensate for the deficiency of single formulation EW lasting effect, CS quick-acting, in process of the test, do not find the bad reactions such as poisoning, there is actual application value.
Field control effectiveness test three:
Test medicine:
30% chlopyrifos novel form (embodiment three)
50% chlopyrifos novel form (embodiment six)
Contrast medicament:
10% chlopyrifos CS
10% chlopyrifos EW
Adopt the above-mentioned chlopyrifos novel form product that embodiments of the invention make, this experiment embodiment is the field control effectiveness test for paddy rice rice leaf roller, adopt chlopyrifos normal field using dosage, dosage process arranges three repetitions, repeat to adopt the group arrangement of random district, each repetition setting area 30m
2, carry out routine spraying with knapsack sprayer, process latter 1 day, 3 days, 7 days, 15 days, 30 days, 45 days, 60 days investigation rice leaf roller larvae quantity respectively, method and data statistic analysis carry out with reference to GB/T 17980.2-2000 relevant criterion.
Table 14: chlopyrifos novel form control paddy rice rice leaf roller field control effectiveness test result
As seen from the above table, chlopyrifos novel form ZW has showed excellent quick-acting and lasting effect in the control of rice leaf roller, lasting period reaches more than one month, completely covers the whole breeding time of rice leaf roller, compensate for the deficiency of single formulation EW lasting effect, CS quick-acting, in process of the test, do not find the bad reactions such as poisoning, there is actual application value.
Claims (4)
1. a novel form for containing chlopyrifos, is characterized in that: micro-capsule suspension-aqueous emulsion that this formulation is mixed to form by chlorpyrifos microcapsule suspension agent and chlorpyrifos aqueous emulsion, is made up of following component by percentage to the quality:
First adopt interfacial polymerization method to process 10% chlorpyrifos microcapsule suspension agent, conventional method processes 10% chlorpyrifos aqueous emulsion, and the two obtains 10% chlorpyrifos microcapsule suspension agent-aqueous emulsion according to mass ratio 3:7 Homogeneous phase mixing;
Or
First adopt interfacial polymerization method to process 20% chlorpyrifos microcapsule suspension agent, conventional method processes 30% chlorpyrifos aqueous emulsion, and the two obtains 23% chlorpyrifos microcapsule suspension agent-aqueous emulsion according to mass ratio 7:3 Homogeneous phase mixing;
Or
First adopt interfacial polymerization method processing chlorpyrifos microcapsule suspension agent, add chlopyrifos oil phase after the solidification of micro-capsule suspension encystation, stir and obtain 30% chlorpyrifos microcapsule suspension agent-aqueous emulsion;
Or
First adopt in-situ polymerization to process 30% chlorpyrifos microcapsule suspension agent, conventional method processes 30% chlorpyrifos aqueous emulsion, and the two obtains 30% chlorpyrifos microcapsule suspension agent-aqueous emulsion according to mass ratio 2:8 Homogeneous phase mixing;
Or
First adopt in-situ polymerization to process 40% chlorpyrifos microcapsule suspension agent, conventional method processes 48% chlorpyrifos aqueous emulsion, and the two obtains 44.8% chlorpyrifos microcapsule suspension agent-aqueous emulsion according to mass ratio 4:6 Homogeneous phase mixing;
Or
First adopt in-situ polymerization processing chlorpyrifos microcapsule suspension agent, after solidification encystation, add chlorpyrifos aqueous emulsion oil phase, stir, obtain 50% chlorpyrifos microcapsule suspension agent-aqueous emulsion;
Or
First adopt in-situ polymerization to process 10% chlorpyrifos microcapsule suspension agent, conventional method processes 50% chlorpyrifos aqueous emulsion, and the two obtains 46% chlorpyrifos microcapsule suspension agent-aqueous emulsion according to mass ratio 1:9 Homogeneous phase mixing;
Or
First adopt again solidifying method processing chlorpyrifos microcapsule suspension agent, after solidification encystation, add chlorpyrifos aqueous emulsion oil phase, stir, obtain 60% chlorpyrifos microcapsule suspension agent-aqueous emulsion.
2. the application of novel form in agricultural insect pests control field of containing chlopyrifos according to claim 1.
3. the application of novel form on control sucking pest and lepidoptera pest of containing chlopyrifos according to claim 2.
4. the application of novel form on control wheat aphid, water rice hopper and paddy rice rice leaf roller of containing chlopyrifos according to claim 3.
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| CN102415376A (en) * | 2011-12-23 | 2012-04-18 | 谢玄 | Chlorpyrifos-containing microcapsule granules and preparation method thereof |
| CN102475092A (en) * | 2010-11-29 | 2012-05-30 | 浙江新农化工股份有限公司 | Compounded insecticidal suspension emulsion with chlorpyrifos and spirotetramat and preparation method of compounded insecticidal suspension emulsion |
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| CN101422164A (en) * | 2007-10-31 | 2009-05-06 | 上海农乐生物制品股份有限公司 | Chlorpyrifos and Imidacloprid suspension emulsion and preparation method thereof |
| CN102475092A (en) * | 2010-11-29 | 2012-05-30 | 浙江新农化工股份有限公司 | Compounded insecticidal suspension emulsion with chlorpyrifos and spirotetramat and preparation method of compounded insecticidal suspension emulsion |
| CN102415376A (en) * | 2011-12-23 | 2012-04-18 | 谢玄 | Chlorpyrifos-containing microcapsule granules and preparation method thereof |
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